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Ferrule, and method of producing an optical waveguide connector, and optical waveguide connector which use the ferrule

a technology of ferrule and connector, which is applied in the direction of optics, instruments, domestic applications, etc., can solve the problems of lowering yield, and achieve the effects of enhancing yield, facilitating production, and facilitating production

Inactive Publication Date: 2010-01-21
SUMITOMO ELECTRIC IND LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention relates to a ferrule used in optical waveguide connectors, and a method of producing the ferrule. The technical effect of the invention is to improve the productivity and accuracy of the ferrule by eliminating the need for a thin piece core to be combined with molding dies during production. This is achieved by providing a ferrule with a split structure that allows for easy assembly and improved accuracy of the insertion and positioning holes.

Problems solved by technology

In production of the ferrule 3, consequently, there arise problems such as that the yield is lowered because of a mold failure.

Method used

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  • Ferrule, and method of producing an optical waveguide connector, and optical waveguide connector which use the ferrule
  • Ferrule, and method of producing an optical waveguide connector, and optical waveguide connector which use the ferrule
  • Ferrule, and method of producing an optical waveguide connector, and optical waveguide connector which use the ferrule

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first embodiment

[0051]FIG. 1 is a perspective view illustrating the ferrule of the invention, and the method of producing an optical waveguide connector according to the invention which uses the ferrule. In the figure, (a) shows a state where an optical waveguide is passed through an insertion hole of the ferrule, (b) shows a state where the optical waveguide is positioned by a positioning portion at the tip end of the ferrule, (c) shows a state where the optical waveguide is bonded and fixed to the ferrule by filling of an adhesive agent, and (d) shows a state where the positioning portion is cut off from the ferrule tip end and the optical waveguide connector is completed.

[0052]FIG. 2 is a diagram of production steps of the method of producing the optical waveguide connector shown in FIG. 1, in which (a) is a longitudinal section view showing an intermediate process of a step of inserting the optical waveguide into the insertion hole of the ferrule, (b) is a longitudinal section view showing an a...

second embodiment

[0072]FIG. 3(a) is a perspective view showing main portions of the method of producing an optical waveguide connector according to the invention, and FIG. 3(b) is a view looking in the direction of C in FIG. 3(a).

[0073]According to the second embodiment, in the positioning portion 16 which is formed integrally with the ferrule tip end, inclined faces 27 which gradually narrow the groove width are formed on the both side faces on the tip end side of the rectangular groove 16a, respectively. Furthermore, chamfered portions 28 which are to butt against the inclined faces 27 to perform a function of positioning in the width direction are provided on the both sides of the tip end of the optical waveguide 2 that is guided into the rectangular groove 16a. Moreover, guide faces 29 which are inclined continuously with the insertion hole 13b of the ferrule 13 to guide the optical waveguide 2 from the insertion hole 13b into the groove 16a are formed in edge portions of the inlet side of the g...

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Abstract

A method of producing an optical waveguide connector in which the productivity of a ferrule member can be improved, and the connection loss with a counter connector can be suppressed to a low level is obtained.An optical waveguide connector 11 is obtained by performing: an aligning step of restricting the position of the tip end of an optical waveguide 2 passed through an insertion hole 13b of a ferrule member 13, by a positioning portion of a positioning member 16 which is opposedly placed at the tip end of the ferrule member 13, thereby aligning the optical waveguide 2 to the ferrule member 13; and a bonding step of filing a gap between the optical waveguide 2 which is passed through the insertion hole 13b, and the insertion hole 13b, with an adhesive agent to fix the optical waveguide 2 to the ferrule member 13.

Description

TECHNICAL FIELD[0001]The present invention relates to a ferrule which is used in the case where an optical waveguide is housed to be connector-connected to another optical component, and a method of producing an optical waveguide connector, and optical waveguide connector which use the ferrule.BACKGROUND ART[0002]As an optical waveguide connector which is used in the case where an optical waveguide such as an optical fiber ribbon or a polymer waveguide is connector-connected to another optical component, the configuration shown in FIG. 4 is known.[0003]In the optical waveguide connector 1 shown in the figure, a tip end portion of a planar optical waveguide 2 is housed and held in a ferrule 3.[0004]In the ferrule 3, as shown in FIG. 4(a), an insertion hole 3b through which the optical waveguide 2 is to be passed is penetratingly formed in the body 3a having a substantially rectangular parallelepiped shape. A pair of positioning holes 3c into which positioning pins for positioning wit...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G02B6/36B29D11/00
CPCG02B6/3855G02B6/3846
Inventor OHMURA, MASAKITAMURA, MITSUAKIKOUTA, HIKARUNAKANO, KAICHIROONO, HIDEYUKITANAKA, CHIEMI
Owner SUMITOMO ELECTRIC IND LTD